Upper surface of a skateboard deck



FIG. 1 is a left upper perspective view of a skateboard deckillustrating my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front end view thereof;

FIG. 6 is a rear end view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in FIGS. 1 and 3-7 form no part of the claimed design.

CLAIM The ornamental design for an upper surface of a skateboard deck,as shown and described.